VOLVO
ECM-P011662 - Engine Coolant Temperature Circuit Range/Performance. Algorithm Based Failures. Signal compare failure
System
Engine Control Module (ECM)
Volvo models this fault code applies to
Applies to the following models:
5 modelsS80 (2007–), V70 (2008–), XC60 (2009–), XC70 (2008–), XC90 (2003–)
Show models by year and engine (6)
- Volvo S80 (2007–)2007–2009Engine D5244T4, D5244T5 only
- Volvo V70 (2008–)2008–2009Engine D5244T4, D5244T5 only
- Volvo XC60 (2009–)2009All engines except: B6304T2
- Volvo XC70 (2008–)2008All engines except: B6324S
- Volvo XC70 (2008–)2009Engine D5244T4, D5244T5 only
- Volvo XC90 (2003–)2013–2014Engine D5244T18, D5244T5 only
What does this fault code mean?
The engine control module (ECM) compares the value from the coolant temperature sensor with an estimated value. If the value deviates too much from the estimate, the fault code is set.
Possible causes
- Contact resistance in the connector
- Damaged engine temperature sensor
What you can do
- 1Read the fault code status with the ignition on and check whether the fault is active. Then clear the code and road test the vehicle
- 2Check the connector at the engine temperature sensor for contact resistance and oxidation
- 3If you have a diagnostic tool: read the engine temperature in live data while driving. A value that does not follow engine load and warm-up suggests the sensor may be damaged
- 4If the connector is in order and the fault remains, have a workshop check or replace the engine temperature sensor
Symptoms you may notice1
- No noticeable symptoms for the driver
What the fault can affect1
- A calculated engine temperature is used
General guidance for car owners. Diagnosis on the car can point to a different cause.